Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method for transmitting or receiving data of a station, the method comprising: respectively setting a direct route to a corresponding station and a relay route to a relay device; selecting one of the direct route and the relay route for communication, including selecting the relay route when the direct route is unavailable, and alternately selecting the direct route and the relay route in accordance with a predetermined order of use when both the direct and relay routes are available; and transmitting or receiving the data through the selected route, wherein the setting of the relay route includes transmitting Media Access Control (MAC) data wherein a relay capability field is set to 1, to the relay device, and setting the relay route through receiving the MAC data wherein the relay support capability field is set to 1, from the relay device.
A wireless station transmits or receives data by establishing both a direct communication path to another station and a relay path through an intermediary relay device. The station chooses either the direct or relay path for communication. If the direct path is unavailable, the relay path is selected. If both paths are available, the station alternates between them based on a pre-determined order. The relay path is set up by sending a Media Access Control (MAC) data frame with a relay capability field set to 1 to the relay device, and receiving a MAC data frame with the relay support capability field set to 1 from the relay device.
2. The method of claim 1 , wherein the selecting of the one route further includes: periodically verifying availability of the direct route and the relay route; and selecting the one route based on a result of the verification.
The wireless station from the previous communication description periodically checks the availability of both the direct and relay communication paths. The station then selects the communication path to use based on the verification results. This periodic verification ensures that the most reliable path is used for data transmission.
3. The method of claim 1 , wherein, when an ACK is not received from the corresponding station or the relay device for a certain time, the transmitting or receiving data comprises: switching from the selected one to the other one of the direct route and the relay route; and transmitting or receiving the data using the other route.
In the wireless station from the initial communication description, if an acknowledgement (ACK) is not received from the target station or relay device within a certain time period, the station switches from the currently selected communication path (direct or relay) to the other path. Data transmission or reception then continues using this alternate path. This provides a fallback mechanism if one path fails.
4. The method of claim 3 , wherein the transmitting or receiving data further comprises: transmitting a relay switch request command for switching the selected route to the corresponding station; and switching the selected route through receiving a response command with respect to the relay switch request command.
The wireless station with automatic path switching due to lack of acknowledgement from the previous description further sends a relay switch request command to the target station, asking it to switch its selected route. The station then switches its route after receiving a response command to the relay switch request. This allows coordinated switching between routes to ensure proper data flow.
5. The method of claim 1 , further comprising: performing an antenna training to adjust a width and a direction of a beam of an antenna with respect to the corresponding station and the relay device; and verifying whether the antenna training with the corresponding station and the relay device is completed.
The wireless station from the initial communication description also performs antenna training to optimize the antenna beam's width and direction towards both the destination station and the relay device. The station also verifies that the antenna training with both the destination and relay device is completed. This improves signal strength and reliability for both direct and relay communication.
6. A method of transmitting or receiving data of a relay device, the method comprising: respectively setting a communication route to a single station and a communication route to a corresponding station that intends to communicate with the single station; respectively performing an antenna training to adjust a direction and a width of a beam of an antenna with respect to the single station and the corresponding station, the antenna training using a parallel training method that is simultaneously performed for the single station and the corresponding station; and receiving the data from the single station and transferring the data to the corresponding station, wherein the transferring the data is performed in an amplify and forward scheme, during which a packet header of the data is decoded, and two modes are set according to the decoded information.
A wireless relay device transmits or receives data by establishing a communication route to a single station and a communication route to a corresponding station that wants to communicate with the single station. The relay performs antenna training to adjust the antenna beam's direction and width for both stations simultaneously using a parallel training method. The relay receives data from the single station and forwards it to the corresponding station using an amplify-and-forward scheme. During forwarding, the relay decodes the packet header of the received data and sets two modes of operation based on the decoded information.
7. A method for transmitting/receiving data of a station, the method comprising: setting a direct route to a corresponding station used to support a relay, and setting a relay route to a relay device; and transmitting/receiving data to/from the corresponding station through the direct route or the relay route, wherein the setting of the relay route comprises: transmitting an Information Element (IE) in which a relay support capability field is set to 1, and setting the relay route with a device in which a relay capability field is set to 1.
A wireless station transmits or receives data by establishing a direct communication path to another station (which supports relaying) and a relay path through an intermediary relay device. Data is transmitted to or received from the corresponding station via either the direct or relay path. The relay path is established by transmitting an Information Element (IE) with a relay support capability field set to 1, and setting the relay route with a device that has a relay capability field set to 1.
8. The method of claim 7 , wherein the transmitting/receiving of the data comprises: transmitting/receiving the data through the relay route when the direct route is disconnected; and transmitting/receiving the data through the direct route when the relay route is disconnected.
In the data transmitting/receiving method of the previous description, data is transmitted or received through the relay path when the direct path is disconnected. Conversely, data is transmitted or received through the direct path when the relay path is disconnected. This provides automatic failover between the two paths.
9. The method of claim 7 , wherein the transmitting/receiving of the data comprises: switching a route when an Acknowledge (ACK) is not received from the corresponding station or the relay device for a predetermined period of time; and transmitting/receiving the data through the switched route.
In the data transmitting/receiving method of the previous description, if an Acknowledge (ACK) is not received from the corresponding station or the relay device within a predetermined period of time, the communication path is switched. Data is then transmitted or received through the newly selected path.
10. A method of transmitting/receiving data of a relay device, the method comprising: performing antenna training to adjust a beam of an antenna with respect to each of a first station and a second station used to form a direct route with the first state, and setting a relay route; and transferring data in an amplify-and-forward scheme between the first station and the second station, wherein the setting of the relay route comprises: transmitting an Information Element (IE) in which a relay capability field is set to 1, and setting the relay route with stations in which a relay support capability field is set to 1.
A wireless relay device performs antenna training to adjust the antenna beam for a first station and a second station that form a direct route. The relay also establishes a relay route. The relay transfers data between the first and second stations using an amplify-and-forward scheme. The relay route is set up by transmitting an Information Element (IE) with a relay capability field set to 1, and setting the relay route with stations that have a relay support capability field set to 1.
11. A method for transmitting or receiving data of a corresponding station, the method comprising: setting a direct route with a station used to support a relay; setting a relay route to a relay device, including transmitting an Information Element (IE) in which a relay support capability field is set to 1; and setting the relay route with the relay device in which a relay capability field is set to 1; when data is not received periodically from the station for a predetermined period of time through one route from among the direct route and the relay route, switching a communication route to the other route; and transmitting data to or receiving data from the station through the switched route.
A wireless station transmits or receives data by establishing a direct path to another station (that supports relaying) and a relay path to a relay device. The relay path is established by transmitting an Information Element (IE) with a relay support capability field set to 1, and setting the relay route with a relay device with a relay capability field set to 1. If data is not received periodically from the originating station through either the direct or relay path for a predetermined amount of time, the station switches to the other communication path. Data transmission to or reception from the originating station then continues using the switched path.
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August 5, 2014
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